Documentation/networking/devlink/mlx5.rst

   1 .. SPDX-License-Identifier: GPL-2.0
   2
   3 ====================
   4 mlx5 devlink support
   5 ====================
   6
   7 This document describes the devlink features implemented by the ``mlx5``
   8 device driver.
   9
  10 Parameters
  11 ==========
  12
  13 .. list-table:: Generic parameters implemented
  14
  15    * - Name
  16      - Mode
  17    * - ``enable_roce``
  18      - driverinit
  19
  20 The ``mlx5`` driver also implements the following driver-specific
  21 parameters.
  22
  23 .. list-table:: Driver-specific parameters implemented
  24    :widths: 5 5 5 85
  25
  26    * - Name
  27      - Type
  28      - Mode
  29      - Description
  30    * - ``flow_steering_mode``
  31      - string
  32      - runtime
  33      - Controls the flow steering mode of the driver
  34
  35        * ``dmfs`` Device managed flow steering. In DMFS mode, the HW
  36          steering entities are created and managed through firmware.
  37        * ``smfs`` Software managed flow steering. In SMFS mode, the HW
  38          steering entities are created and manage through the driver without
  39          firmware intervention.
  40    * - ``fdb_large_groups``
  41      - u32
  42      - driverinit
  43      - Control the number of large groups (size > 1) in the FDB table.
  44
  45        * The default value is 15, and the range is between 1 and 1024.
  46
  47 The ``mlx5`` driver supports reloading via ``DEVLINK_CMD_RELOAD``
  48
  49 Info versions
  50 =============
  51
  52 The ``mlx5`` driver reports the following versions
  53
  54 .. list-table:: devlink info versions implemented
  55    :widths: 5 5 90
  56
  57    * - Name
  58      - Type
  59      - Description
  60    * - ``fw.psid``
  61      - fixed
  62      - Used to represent the board id of the device.
  63    * - ``fw.version``
  64      - stored, running
  65      - Three digit major.minor.subminor firmware version number.